Engine



FIG. 1 is a front perspective view of the engine according to the present design;

FIG. 2 is a front elevation view of the engine as shown in FIG. 1;

FIG. 3 is a rear elevation view of the engine as shown in FIG. 1;

FIG. 4 is a left side elevation view of the engine as shown in FIG. 1;

FIG. 5 is a right side elevation view of the engine as shown in FIG. 1;

FIG. 6 is a top plan view of the engine as shown in FIG. 1; and,

FIG. 7 is a bottom plan view of the engine as shown in FIG. 1.

The features shown in broken lines in FIGS. 1, 2, 3, 4, 5, 6 and 7 depict portions of the engine that form no part of the claimed design. 

The ornamental design for an engine, as shown and described. 